冲刺记录4

完成注册和登录的后端

代码如下：

package com.example.chat.controller;


import com.example.chat.entity.User;
import com.example.chat.service.impl.UserServiceImpl;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;

import org.springframework.web.bind.annotation.RestController;

import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 * <p>
 *  前端控制器
 * </p>
 *
 * @author chat
 * @since 2024-04-23
 */
@RestController
@RequestMapping("/user")
public class UserController {
    @Autowired
    private UserServiceImpl userService;
    @PostMapping("/login")
    private Map<String, Object> login(@RequestBody User user)
    {
        List<User> wrapper = userService.lambdaQuery()
                .eq(User::getId, user.getId())
                .eq(User::getPassword, user.getPassword()).list();

        Map<String, Object> response = new HashMap<>();
        if(wrapper.isEmpty())
        {
            response.put("status", "failed");
            response.put("message", "登录失败");
        }else
        {
            response.put("status", "success");
            response.put("userId", user.getId());
            response.put("userPassword", user.getPassword());
        }
        return response;
    }
    @PostMapping("/register")
    private Boolean register(@RequestBody User user)
    {
        return userService.saveOrUpdate(user);
    }
}